Answer:
Step-by-step explanation:
Remember that the center of a circle is written in (h,k) format. So h= - 9 and k = -12. Also, the distance between those two points is 15 units, so r = 15.
So the formula 
Should look like
the answer is c you just have to solve each one
Answer:
it 1172.08!:)
Step-by-step explanation:
135.05 = 50 + 9.45x
85.05 = 9.45x
x = 85.05/9.45
x = 9
Mariana worked for 9 hours.
Answer:
(-3, 0), (0, -9)
Step-by-step explanation:
x-intercept: Let y = 0 and find x: 0 = -3x - 9), or 3x = -9. Then x = -3, and the x-intercept is (-3, 0).
y-intercept. Let x = 0 and find y. y = -3(0) - 9 = -9. The y-intercept is (0, -9).
